Package org.eclipse.emf.ecp.view.internal.rule

Class RuleRegistry<T extends Rule>

java.lang.Object

org.eclipse.emf.ecp.view.internal.rule.RuleRegistry<T>

Type Parameters:

T - the actual Rule type

public class RuleRegistry<T extends Rule>
extends java.lang.Object

Rule registry that maintains which VElements are affected if a setting is changed.

Author:

emueller, jfaltermeier

Constructor Summary

Constructors

Constructor	Description
RuleRegistry(ViewModelContext context)	Default constructor.

Method Summary

Modifier and Type	Method	Description
void	dispose()	Disposes this RuleRegistry.
java.util.Map<T,VElement>	getAffectedRenderables(UniqueSetting setting)	Returns all rules that would be affected if the value of given setting is changed.
java.util.Set<UniqueSetting>	getSettings()	Returns the settings of this registry.
java.util.Set<UniqueSetting>	register(VElement renderable, T rule, Condition condition, org.eclipse.emf.ecore.EObject domainModel)	Creates a setting from the given EObject and the Condition and register it with the VElement.
VElement	removeCondition(Condition condition)	Removes the given condition from the registry.
void	removeRenderable(VElement renderable)	Removes the given VElement from the registry.
VElement	removeRule(T rule)	Removes the given rule from the registry.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

RuleRegistry

public RuleRegistry(ViewModelContext context)

Default constructor.

Parameters:

context - the view model context of the RuleService using this registry

Method Detail

register

public java.util.Set<UniqueSetting> register(VElement renderable,
                                             T rule,
                                             Condition condition,
                                             org.eclipse.emf.ecore.EObject domainModel)

Creates a setting from the given EObject and the Condition and register it with the VElement.

Parameters:

renderable - the VElement to be updated in case the condition changes

rule - the parent rule holding the Condition

condition - contains the attribute that the condition is depending on

domainModel - the domain object that owns the attribute possibly being changed

Returns:

the registered UniqueSettings

removeRule

public VElement removeRule(T rule)

Removes the given rule from the registry.

Parameters:

rule - the rule to be removed

Returns:

the VElement that belonged to the removed rule

removeRenderable

public void removeRenderable(VElement renderable)

Removes the given VElement from the registry.

Parameters:

renderable - the renderable to be removed

removeCondition

public VElement removeCondition(Condition condition)

Removes the given condition from the registry.

Parameters:

condition - the condition to be removed

Returns:

the VElement that belonged to the removed condition

getSettings

public java.util.Set<UniqueSetting> getSettings()

Returns the settings of this registry.

Returns:

the settings of this registry.

getAffectedRenderables

public java.util.Map<T,VElement> getAffectedRenderables(UniqueSetting setting)

Returns all rules that would be affected if the value of given setting is changed.

Parameters:

setting - the setting

Returns:

a list of VElements that are affected of the setting change

dispose

public void dispose()

Disposes this RuleRegistry.